I have 3 plants all auto fems, 2 Afghani and 1 mazar. The Mazar is showing yellow tips on some but not a majority of the leaves and one leaf with major yellowing. I'm using a Mars hydro tsw 2000 light, nature's living soil concentrate mixed with fox farms happy frog for bulk. Light schedule is 18/6 and pH of the water is between 6.28 and 6.31, my afghans are doing beautifully but something is definitely up with this Mazar as the afghans are well into flowering and the it's barely got a hair. I'm a first time grower and the seeds were planted after germinating on the 23rd of March. I haven't added any top ferts or anything just adding water as needed to keep the soil nice and moist but definitely not soggy. This is on average every 1-2 days.